We report an infant with a large patent ductus arteriosus (PDA) and a hypoplastic aortic isthmus presenting with factitious coarctation due to high ductal flow. Following transcatheter occlusion of the PDA with a Gianturco-Grifka vascular occluder, the aortic gradient resolved, thereby eliminating the need for surgery on the isthmus. Cathet. Cardiovasc. Diagn. 45:409–412, 1998.
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